Pro-life house Speaker Paul Ryan has indicated that he will not seek reelection to his congressional seat based in Wisconsin. That will set up a leadership battle within the Republican Party to replace him as Speaker.

The number two and number three Republicans in the house are both pro-life and both apparently considering running for the speakership position. Majority Leder Kevin McCarthy of California, Majority Whip Steve Scalise of Louisiana, and North Carolina’s Mark Meadows, a leading...